Superheater.



s. M. VAUGLAIN. SUPERHBATER'. APPLICATION FILED OOT.2B, 1911 Patented Aug. 6, 1912.

lmm 002 o UNITED STATES rgrENT OFFICE. 1

SAMUEL M. VAUCLAIN, F IHILADELPHIA, PEhTN'SYLVANIA, ASSIGNOR TO LOCOMOTIVE SUPERHEATER COMPANY, A CORPORATION OF NEW JERSEY.

SUPERHEATER.

To all whom it may concern:

Be it known that I, SAMUEL M. VA'ooLAiN, a citizenof the United States. residing in i Philadelphia, Philadelphia county, State of reference being had to the accompanying drawings, which form a part hereof.

This invention relates generally to super- "Hiaaters for locomotive and like boilers in which the superheater pipes are located in the fire-tubes of the boiler.

The object of the invention is to facilitate the withdrawal and replacement of any unit or single group of superheater pipes without disturbing the others. y

In accordance with the invention each .unit is secured at its ends to -a chambered lug which is secured with a steam tight oint in the header, being preferably tapered, and can be withdrawn. from the forward end, taking with it the superheater unit.'

plained hereinafter with reference to the accompanying drawings in which it is illustrated and in which-- Figure 1. is a view partly in longitudinal central section of so much of a steam boiler as is necessary to enable application of the invention theretoto be understood. Fig. 2 is a view of the same in end elevation.

Fig. 3 is a detail.vicw in section showing ..one of the plugs in position in the header with its pipe connections. Fig. & is a detail View showing the arrangement of the pipes which constitute a unit and the connection of the pipes at the fire-box end, the plane of section being indicated by the broken line 4-1-4 of Fig. 5. Fig. 5 is a detail view in section on the plane indicated by the line 5-5 of Fig. 4.

- The invention is illustrated in the drawings as applied to a locomotive boiler of ordinary construction, the shell a, the firetube sheet 6, the fire-tubes '0, th'esaturated steam pipe d, and the superheated steam or delivery pipes 12 being all-constructed and Specification of Letters Patent.

steam, as indicated at e in Figs. 1 and 3,

Patented Aug. 1912.

Application filed October 28, 1911. Serial No. 6li7,230,

arranged in any usual or suitable manner. The header f, which is located in the smokeboX and is connected with the saturated steam pipe (Z and the superheated steam pipes a has a front wall f, a rear wall f and" an intermediate wall i which form between then] a saturated steam chamber 7 and a superheated steam chamber f said chambers being connected respectively with the pipes (Z and e. In line with each fire/tube c the header is pierced, through llf, three walls, with an opening, the minimum diameter of which is preferably as great as the outside diameter of the corresponding the tube. Preferably the opening through, the walls of the header is formed on a taper and the chambered plug g which is inserted therein is correspondingly tapered to facilitate the formation of a steam tight joint. Each plug g, as shown most clearly in Fig. 3, has a removable cap orfront end 9', a rear. end or wall 9 and an intermediate wall g these walls forming a chamber 9*, corresponding to the chamber f of the header, and a chamber 9* corresponding to the chamber f of the header. The chamber is provided with a port g to afford communication with the chamber f and the chamber 57 is likewise provided with a port ff to aiford communication with the chamber f. The cap 9 is preferably flanged as shown so that it may besecured to the header by bolts h h, which may extend through all of the walls of the header or into the front wall duly. One end of the corre sponding super-heater unit is secured to the plug 9 so as to communicate with the chamher 9 and receive therefrom the saturated while the other end of the unit is carried through achamber g and is connected to the plug in communication with the chamber 9, so as to deliver the superheated steam thereto, as indicated at it in Figs. 1 and 3. Tight joints, between the ends of the superheater unitand the walls of the plug are made in the usual manner. The superheater pipes of each'unit may be arranged in any suitable manner. Preferably, however, they are-arranged as shown in the drawings, two pipes i being in communication. with the saturatedsteam chamber 9' at their forward ends and being connected at their rear ends,

through asuitahle union 1, with a. single return pipe icywhichisconnected at its fol-{ ward end with the superheated steam chamher of the plum This distribution of the saturated steam in two pipes 2', severally of smaller diameter than the return pipe is, is found to give most satisfactory results in practice.

ltivill be obvious that any superheater unit can be removed readily Without disturbine,- any other by the withdrawal of the corresponding plug g and that, if necessary, any one of the fire-tubes o may also be With- Withoutdisturbing any other than the single superheater unit involved.

it will be understood that. the details of COIlSlQlUCtn and arrangement can be varied to suit diierent conditions of use and that the invention therefore is not limited to the particular construction and arrangement shown and described herein.

It claim as my invention I l. in'a superheater for steam boilers, the combination of a header having a chamber for saturated steam and a chamber for superheated steam, a chambered plug removahly secured 'in the header and having a chamber communicating with the saturated steam chamber or" the header and a chamber communicating with the superheated steam chamber of the header, and a superheater unit having its ends communicating respectively with the respective chambers of the In a. superheater for steam boilers, the combination of a header having a chamber for saturated steam and a chamber. for superheated. steam, a tapered chambered plug rezncvably secured in the header and having chamber conununicating with the saturated steam chamber of the header and. a chamber communicating with the superheated steam chamber of the header, and a superheater unit having its ends communh eating respectively with the chambers of the plus. 4

3. in a superheater for steam. boilers, the combination of a header having a front wail and an intermediate Wall to term a chamber for saturated steam anda chamber for superheated steam, said Walls being pierced with openings in line with the superhcater unit, a chambered'plug seated in said openings and having a chamber conr rnunicatiug with the saturated steam cha1nber of the header and a chamber communicating "with the superheated chamber of the header and a superheater unit having its ends communicating respectively with the respective chambers of the plug.

i. In a super-heater for steam boilers, the

comhination of a header having a front wall, rear Wall and an intermediate Wall to term chamber for saturated steam and a. chamber for superheated steam, said Walls being pierced with opepings in line with the superheater unit, a chambered plug seated respective in said openings and having a chamber communicating. with the saturated steam chamber of the header and a chamber communicating with the superheated steam chamber of the header, and a superheater unit having one end extended into the rear chamber of the plug to communicate therewith and having another end extended through the rear chamber. of the plug into the forward chamber thereof to communicute therewith. V

5. In a steam boiler, the combination of a boiler shell, a fire-tube, a header located in front or. the fire-tube and having a front Wall, a rear wall and an intermediate Wall to form a chamber for saturated steam and a chamber for superheated steam, said Walls being pierced with openings in line with the fire-tube, a chambered plug seated said opehings and having a chamber coininunb eating with the saturated chamber of the header and a chamber communicating with the superheated steam chamber of the header, and a superheaternnit disposed in the fire-tube and having its ends c'ommupieating respectively with the respective chambers of the plu 6. In a superheaterfor steam boilers, the combination of a header having a front Wall, a rear Wall and an intermediate Wall to form a chamber for saturated steam and a chamber for superheated steam, said walls being pierced with openings in line with the superheater unit, a chambered plug seated in the openings in the intermediate and rear Walls, means to close the opening in the front Wall, and a superheater unit having one end extended into the chamber of the plug to communicate with the corrc-rsponding chamber of the header and another end extended through said chamber of the to communicate with the other chamber of the header.

7. A superheater unit comprising a plurality of pipes to, receive the saturated steam, a singleret-urn pipe, and a union connectingthe saturated steam pipes with the return pipe.

8. In a superheater for steam boilers, the combination of a headerhaving a chamber for saturated steam and a chamber for superheated steam, a superheater unit com prising a plurality of pipes communicating with the saturated steam chamberof the;

perheated s eam, a chambered plug removably secured in the header and having a chamber conununlcating w th the saturated steam chamber of the header ands chamber This specification signal and witnessed this 14th clay of October A. 1),, 1911.

SAMUEL M. Varietals.

Signed in the presence of JACQUES L. VAUCLAIN, FRANKLIN Annorr.

DIECIa.A- IMEB, 1,034,5&O.-Sanmel 1h. limclain, Philadelphia, Pa. Snreenmrnn. Patent detect August 6, 1912. Disclaimer filed October 31, 1913, by the assignee, Locomotive Super/water Cmnytmy, a Corporation of Delaware.

Enters this disclaimer-- To claims 7 and 8, reading follows:

7. A superhcater unit comprising a plurality of pipes to receive the saturated steam, a single return pipe, and a union connecting the saturated steam pipes with the return pipe.

8. In a superheater for steam boilers, thecemhination of a header having a chamber for saturated steam and a chamber for superheated steam, a superheater unit comprising a plurality of pipes communicating with the saturated steam chamber of the header, a single return pipe communicating with the superheated steam chamber of the header, and. a union connecting the saturated steam pipes with the return pipe.

Oficial Gazette, November 11, 1.913.

This specification signal and witnessed this 14th clay of October A. 1),, 1911.

SAMUEL M. Varietals.

Signed in the presence of JACQUES L. VAUCLAIN, FRANKLIN Annorr.

DIECIa.A- IMEB, 1,034,5&O.-Sanmel 1h. limclain, Philadelphia, Pa. Snreenmrnn. Patent detect August 6, 1912. Disclaimer filed October 31, 1913, by the assignee, Locomotive Super/water Cmnytmy, a Corporation of Delaware.

Enters this disclaimer-- To claims 7 and 8, reading follows:

7. A superhcater unit comprising a plurality of pipes to receive the saturated steam, a single return pipe, and a union connecting the saturated steam pipes with the return pipe.

8. In a superheater for steam boilers, thecemhination of a header having a chamber for saturated steam and a chamber for superheated steam, a superheater unit comprising a plurality of pipes communicating with the saturated steam chamber of the header, a single return pipe communicating with the superheated steam chamber of the header, and. a union connecting the saturated steam pipes with the return pipe.

Oficial Gazette, November 11, 1.913. 

